Overall Cohort (n = 96) | Definitive SBRT Subgroup (n = 89) | |||||||
---|---|---|---|---|---|---|---|---|
Univariate | Multivariate | Univariate | Multivariate | |||||
p | HR (95% CI) | p | HR (95% CI) | p | HR (95% CI) | p | HR (95% CI) | |
PET-CT Planning | 0.165 | 0.64 (0.34, 1.20) | 0.161 | Not entered | 0.051 | 0.53 (0.28, 1.003) | 0.051 | 0.53 (0.28, 1.003) |
Tumor volume (5 cc increase) | 0.609 | 1.01 (0.97, 1.05) | 0.609 | Not entered | 0.495 | 1.003 (0.98, 1.06) | 0.568 | Not entered |
Cetuximab with SBRT | 0.861 | 0.95 (0.51, 1.76) | 0.861 | Not entered | 0.354 | 0.74 (0.40, 1.39) | 0.294 | Not entered |
Interval from previous radiation to recurrence (3 months increase) | ||||||||
0.300 | 0.99 (0.96, 1.01) | 0.297 | Not entered | 0.361 | 0.99 (0.96, 1.01) | 0.440 | Not entered |